Wednesday, November 11, 2015

SANYO LCD-32XZ10 SERVICE MODE AND POWER SUPPLY CIRCUIT

SANYO BLU RAY

SANYO LCD-32XZ10 

SERVICE MODE AND POWER SUPPLY CIRCUIT 

SERVICE MODE
a) First press key “SOURCE”
then press number key “2,5,8,0” in turn to enter into initial factory menu;
HOW TO NAVIGATE 
b) Press keys “CH+” and “CH-” can move cursor to each page of initial factory menu, then press key “OK” can enter into adjustment menu of each page;
c) Press keys “CH+” and “CH-” can move cursor upwards and downwards within one adjustment page;
d) Move cursor to one adjustment item, then press keys “VOL-” and “VOL+” can adjust it;
e) Press key “MENU” can exit adjustment menu of one page to its superior factory menu;
f) Press key “EXIT” can exit factory menu at any time;
g) Press key “OK” can enter into inferior factory menu;
h) Factory menu item “ADC Calibrate” is used to correct ADC of VGA and Component channel;
i) Factory menu item “W/B ADJUST” is used to adjust white balance;
j) Factory menu item “POWER MODE” is used to set power-on mode, “Standby” means the set will be in standby state after power-on; “MEM” means the set will be in the state before the last power-off; “ForceOn” means the set will be working automatically after power-on, this mode is also used for factory-machine-aging; default setting should be “Standby” mode unless specified by customer requirement;
k) Factory menu item “ISP MODE” is used to upgrade unit software from VGA port when the item is set as “ON” and the set is connected to ISP adjustment equipment; DDC function of VGA port will be recovered when the item is set as “OFF”; the value of the item can not be kept in the memory, that is to say the item is reset as “OFF” after power-on again;
l) Factory menu item “RESET ALL” is used to reset factory menu data and user menu data; after execute the item, the set will be started up again and the startup guided picture will be displayed;
m) Factory menu item “FACTORY CHANNEL PRESET” is used to preset factory programs data; it is necessary to connect to central signal source for DTV searching programs. Now digital frequency of central signal CH28(529.5 MHz) and CH33(564.5 MHz) are distributed to Australia programs. Primary preset programs would not be modified along with the changing of central signals, so please select item DTV in menu Channel to manual search digital programs, the process will spend about 15s;
n) Factory menu item “CUSTOM CHANNEL PRESET” : first delete all DTV/ATV programs for factory adjustment, then preset ATV channel data according to customer order requirements; please execute the item to clear out all programs for factory adjustment before leaving factory;
o) Factory menu item “MST Debug” :default setting “OFF” is used for engineering models whose RS232 functions can measure up to design specifications; setting “ON” is convenient for debugging by developing tools; the value of the item can not be kept in the memory, that is to say the item is reset as “OFF” after power-on again;
p) Factory menu item “BACKLIGHT” is used to adjust backlight brightness, adjust the item and test voltage of X801-12# (PWM) to measure up to the maximum PWM voltage in panel specification;
q) Factory menu item “SSC ADJUST” is used to adjust expended functions of frequency content, the software having been preset according to model need not be adjusted again;
r) Factory menu item “AUDIO Curve” is used to adjust audio curve; without special customer requirements, the software having been preset according to model need not be adjusted again;
If the software has been upgraded or EEPROM has data already, please execute item “RESET ALL” before adjustment for the first time.
ADC calibration
ADC calibration of VGA channel
a) Switch to VGA channel;
b)
Enter into initial factory menu;
c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into interior factory menu;
d) Input VGA signal (VG-848 Timing:856(1024×768/60 Hz),Pattern 920 Gray 8 step(H)),
move cursor to item “MODE press keys “” and “” to select item “RGB”, then move cursor to item “AUTO ADC” and press key “OK” to begin adjustment automatically until adjustment completion.
ADC calibration of YPbPr channel
a) Switch to YPbPr channel;
b) Enter into initial factory menu;
c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into interior factory menu;
d) Input YPbPr signal (VG848 Timing 976
720P,Pattern 918 SMPTE Color Bar), move cursor to item “MODE”,press keys “” and “” to select item “YPbPrHD ”, then move cursor to item “AUTO ADC” and press key “ENTER” to begin adjustment automatically, a prompt “success” displayed under “AUTO ADC” means auto-adjustment completed successfully;
e) Input YPbPr signal (VG848 Timing 968
408I ,Pattern 918 SMPTE Color Bar), move cursor to item “MODE press keys “” and “” to select item “YPbPr SD ”, then move cursor to item “AUTO ADC” and press key “ENTER” to begin adjustment automatically, a prompt “success” displayed under “AUTO ADC” means auto-adjustment completed successfully;
White balance adjustment
Unless specified by customer, default COOL color temperature is 12000K, chromaticity coordinates is  272,278
; default Normal color temperature is 9300K, chromaticity coordinates is 285,293; default Warm color temperature is 6500K, chromaticity coordinates is 323,329 .
White balance adjustment processes
The set should be working above 30 minutes before white balance adjustment for it would be in a stabler state. Use white balance apparatus CA-210 and switch to any channel have checked.
a) Switch to HDMI channel

b) Enter into initial factory menu;
c) Move to item “W/B ADJUST” and press key “OK” to enter into interior factory menu;
d) Input DVI/HDMI signal
VG-848 Timing: 856(1024×768/60 Hz),Pattern:921 16 step Gray,move cursor to item “MODE”, press keys “” and “” to select item “HDMI1” or other HDMI channels, then move cursor to item “TEMPERTURE”, press keys “” and “” to select item “COOL”;
e) Adjust items “R GAIN,G GAIN,B GAIN” to set chromaticity coordinates of the 14th step is
272,278 ;
f) Adjust item “R Offset
G Offset B Offset” to set chromaticity coordinates of the 4th step is 272,278 ;
g) During adjustment , make sure that color temperature of bright step is (X=272±10 Y=278±10) and color temperature of dark step is (X=272±10 Y=278±10);
h) Then move cursor to item “COPY ALL” to copy white balance data to the other channels except DTV channel;
i) Check if color temperature of HDMI NORMAL and WARM meet requirements as below: bright step: allowable error is ±10, dark step: allowable error is ±10; otherwise adjust items “R_GAIN /B_GAIN/R_OFF/B_OFF” to meet requirements and then save data;
j) Switch to other channels ATV, AV,COMPONENT and D-SUB , check if color temperature of COOL,NORMAL and WARM meet requirements; otherwise adjust them respectively with 16 step Gray signal and the same adjustment method as HDMI channel’s; exit menu “W/B ADJUST” after adjustment and the data would be saved automatically;
k) DTV channel adjustment: switch to DTV channel, input 16 step Gray signal, enter into factory menu, then begin adjustment followed by steps “e, f, g”;
l) Adjustment rules for reference as below:
adjust B gun: adjust B gun value downwards , then coordinates of X,Y will rise;
adjust B gun value upwards , then coordinates of X,Y will descent;
adjust R gun will effect the coordinate of X , and effect the value of Lv a little:
adjust R gun value upwards , then coordinate of X will rise;
adjust R gun value downwards , then coordinate of X will descent;
adjust G gun will effect the coordinate of Y , and effect the value of Lv a lot:
adjust G gun value upwards , then coordinate of Y will rise;
adjust G gun value downwards , then coordinate of Y will descent;
note: default color temperature for SANYO customer is Normal; change to picture mode
Dynamic, adjust chromaticity coordinates of color temperature Normal and Cool; only adjust chromaticity coordinates of color temperature Cool for other customers when picture mode is Dynamic.
POWER SUPPLY CIRCUIT 
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